"There are loads of quotations stored at Wikiquote (http://www.wikiquote.org) where you can enter a search phrase like "life" or "humour" and get loads of quotations from different notable personalities. Each personality is linked to their page in Wikipedia."

"Some might go a step further and contend that a place like Wikiquote is appropriate since the quotes can be verified. The same with Wikisource, which contains documents you can read or download of great scientific, literary, religious, and political figures. Unlike Wikipedia or Wikinews, there is no real crowdsourcing of the content; the crowd only helped find the original works and posted them there. So one wiki resource might be acceptable and another might not."